Finding the Fourth Proportional to 239,824.68, 330,958.79 and 130,929.20
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Solution
The fourth proportional to 239,824.68, 330,958.79 and 130,929.20 is: 180,682.69
Step by Step Solution
- Step 1: Write the proportion equation
239,824.68 : 330,958.79 = 130,929.20 : x - Step 2: Convert to fraction form
239,824.68/330,958.79 = 130,929.20/x - Step 3: Cross multiply
239,824.68x = 330,958.79 × 130,929.20 - Step 4: Simplify right side
239,824.68x = 43,332,167,298.23 - Step 5: Solve for x
x = 43,332,167,298.23/239,824.68 - Step 6: Final answer
x = 180,682.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.